Pith Number

pith:HPSRQM6B

pith:2018:HPSRQM6BLCGDPTXZQSJU4A2QQ2

not attested not anchored not stored refs pending

External Patch-Based Image Restoration Using Importance Sampling

Jose M. Bioucas-Dias, Mario A.T. Figueiredo, Milad Niknejad

arxiv:1807.03018 v1 · 2018-07-09 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPSRQM6BLCGDPTXZQSJU4A2QQ2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T00:01:28.487402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3be51833c1588c37cef984934e035086851872fc2fbb6a174601bf5c0375bcac

Aliases

arxiv: 1807.03018 · arxiv_version: 1807.03018v1 · doi: 10.48550/arxiv.1807.03018 · pith_short_12: HPSRQM6BLCGD · pith_short_16: HPSRQM6BLCGDPTXZ · pith_short_8: HPSRQM6B

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HPSRQM6BLCGDPTXZQSJU4A2QQ2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3be51833c1588c37cef984934e035086851872fc2fbb6a174601bf5c0375bcac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b4341928f93eb0f2ab3371bc01686e142b2692f709db9a85ea718083159b619",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-09T09:52:56Z",
    "title_canon_sha256": "d3504ca6b293238db19866d278d69edfad3301c2bef4372d1e0b3b11e887cbb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03018",
    "kind": "arxiv",
    "version": 1
  }
}